Russell King bac4e960b5 [ARM] barriers: improve xchg, bitops and atomic SMP barriers ... Mathieu Desnoyers pointed out that the ARM barriers were lacking: - cmpxchg, xchg and atomic add return need memory barriers on architectures which can reorder the relative order in which memory read/writes can be seen between CPUs, which seems to include recent ARM architectures. Those barriers are currently missing on ARM. - test_and_xxx_bit were missing SMP barriers. So put these barriers in. Provide separate atomic_add/atomic_sub operations which do not require barriers. Reported-Reviewed-and-Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		2009-05-28 19:39:27 +01:00
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.gitignore
armksyms.c
arthur.c
asm-offsets.c
atags.c
atags.h
bios32.c
calls.S	[ARM] 5456/1: add sys_preadv and sys_pwritev	2009-04-20 14:01:39 +01:00
compat.c
compat.h
crunch-bits.S
crunch.c
debug.S
dma-isa.c
dma.c
ecard.c
ecard.h
elf.c	[ARM] disable NX support for OABI-supporting kernels	2009-05-23 11:36:20 +01:00
entry-armv.S	[ARM] barriers: improve xchg, bitops and atomic SMP barriers	2009-05-28 19:39:27 +01:00
entry-common.S
entry-header.S
fiq.c
ftrace.c
head-common.S
head-nommu.S
head.S
init_task.c
io.c
irq.c
isa.c
iwmmxt.S
kgdb.c
kprobes-decode.c
kprobes.c
machine_kexec.c
Makefile
module.c	[ARM] 5507/1: support R_ARM_MOVW_ABS_NC and MOVT_ABS relocation types	2009-05-07 17:21:01 +01:00
process.c
ptrace.c
ptrace.h
relocate_kernel.S
setup.c
signal.c
signal.h
smp.c	[ARM] smp: fix cpumask usage in ARM SMP code	2009-05-17 16:22:46 +01:00
stacktrace.c
sys_arm.c
sys_oabi-compat.c	Separate out common fstatat code into vfs_fstatat	2009-04-20 23:02:51 -04:00
thumbee.c
time.c
traps.c
unwind.c
vmlinux.lds.S
xscale-cp0.c